Hydraulic valve



Feb 27 1945# H.'R. ELLINvJoD HYDRAULIC VALVE.

Filed umn 1o, 1941 4 lvenm J W a w s a Wg Mmv/Z HERMA/v RAY ELL/Nwoop counterbore` Ina.

Patented F eb. 27, 1945 OFFICE HYDRAULIC VALVE Herman Ray Ellinwocd, Glendale, Calif., assigner to Adel Precision Products Corp., Calif., a corporation of California Burbank,

Application March 10, 1941, Serial No. 382,554

2 Claims.

The present invention relates to valves for controlling hydraulically operated mechanisms of airplanes.

An object of my invention is to provide a valve construction ofthe character described in which a novel Valve seat assembly is arranged in such manner as to permit of convenient interchange of parts without dependence on the use of screw threaded assemblies and costly machining and fitting operations.

Another purpose is to provide an improved valve assembly having an especially designed seat member to insure ample iiow of hydraulic iluid with a minimum of turbulence.

With the foregoing objects in view together with such other objects and advantages as may subsequently appear the invention is carried into eiect as illustrated by way of example in th accompanying drawing in which:`- Fig. 1 is a sectional view of a valve embodying my invention;

Fig. 2 is a fragmentary sectional view taken on the line 2 2 of Fig. 1.

Referring to the drawing more specifically, one embodiment of my invention includes a valve body 9 having a cylindrical valve-receiving bore I opening at its inner end into a cam shaft bore I4 for a cam shaft G.

The valve receiving bore I0 is provided with a counterbore 10a into which .a iiuid passage 51 opens, and as shown in Fig. 1, the cam shaft Y passage I4 is aiorded communication with a fluid passage 6l by means of a port 59, whereby iluid may owthrough the bores Il) and I4 from one of said uid passages to the other.

A valve member 36 having a depending stem 31 and a spring holding boss 38 is adapted to seat against the upper end of a cylindrical seat member 39 tted in the lower endof the bore I0. This seat member has an annular external ilange 40 seated on an annular shoulder 4I in said bore. A sealing sleeve 42 telescopes the upper end of the seat member 39 and holds a compressible sealing ring 43 in an annular external recess 44 in the upper end of the seat member. This sleeve also telescopes the inner end of a screw threaded cap 45 and holds sealing rings 46 between it and l the cap. while also holding the valve seat 39 in place. A spring 4l disposed between the valve member 36 the cap 45, holds the valve seated. Radial ports 53 in the sleeve 42 opens into -the The valve seat 39 is open at its lower end for 'communication with the cam shaft bore I4.

Below its seating .edge the seat member 39 is conter valve stem bore Il through a wall I2 which would otherwise close the lower end of the seat member. As shown in Fig. 2, the openings or ports 50 are of such size and disposition that together with the chamber 48 beneath the valve seating edge, there will be provided ample passageway to insure an unrestricted and ample ilow through the valve assembly. It should be noted that the ports 50 at their upper ends, intersect and extend into the cylindrical wall of the chamberor recess 48, forming recesses 50 in said wall whereby to insure ample ilow without restriction, through said ports. The recess 48 has substan- .tially the same diameter as the seat 39 while the circular series of ports 50 have an area at least equal to the area of said recess by reason of the manner in which they are cutI into the recess.

'cations and equivalents of the parts and theirformation and arrangement as come within the purview of the appended claims.

I claim:

l. In a valve assembly, a body having a bore therein, a seat member iitted in said body and having a valve seat at one end and a cylindrical recess next adjacent said valve seat also a circular series, of ports each extending axially through the other end of the'seat member and partly into the wall of and communicating with said recess,` and a valve member associated with said seat, said recess being 'of substantially the same diameter as said seat, said circular series of ports being of an area at least equal to the area of said recess. A

2. In a valve assembly, a body having a bore therein, a seat member iltted in said body and having a valve seat at oneend and a cylindrical recess next adjacent said valve seat also a circular series of ports each .extending axially through the other end of the seat member and partly into the wall of and commun1',catingwithy said recess, a valve member associated with said seat, said `seat member having a valve stem bore centrally' of said circular series of ports and a stem on said valve slidable in the bore therefor,

said recess being of substantially the lsame diameter as said seat, said circular series of ports being of an area. at least equal to the area o1' said recess.

HERMAN RAY ELuNwoon. 

